#include<stdio.h>
int root2(int a,int b,int c,double* x1,double* x2){
    double dt=b*b-4*a*c;
    if(dt<0)
        return 0;
    *x1=(-b+sqrt(dt))/(2*a);
    *x2=(-b-sqrt(dt))/(2*a);
    return 1;
}

int main(){
    int a,b,c;
    double x1,x2;
    scanf("%d%d%d",&a,&b,&c);
    if(root2(a,b,c,&x1,&x2))
        printf("x1=%f x2=%f\n",x1,x2);
    else
        puts("no solutions!");

    return 0;
}
